* {
  padding: 0;
  margin: 0;
  box-sizing: border-box;
}

ul,
ol {
  list-style: none;
}

a {
  text-decoration: none;
  color: #b0b0b0;
}

/* 清除浮动*/

.fl {
  float: left;
}

.fr {
  float: right;
}

.clearfix:after {
  content: '';
  display: block;
  clear: both;
}

.tc {
  text-align: center;
}

.w {
  width: 1230px;
  margin: 0 auto;
}

html,
body {
  background-color: #fff;
}

